Specifications - Honeywell AQ25A Series Technical Reference Booklet

AQ250 SERIES HYDRONIC CONTROL PANELS
• When using non-communicating thermostats, the
following features are not available:
• Outdoor temperature is not displayed on the
thermostat.
• Individual zone freeze protection.

SPECIFICATIONS

The AQ250 Control Panels and corresponding attached
equipment are listed in Table 1.
Table 1. AQ250 Series Control Panel Models.
Corresponding
Control Panel Control Module
AQ25042B AQ15000B
AQ25044B AQ15000B
Application: Controls one boiler loop as well as domestic hot
water (DHW) management and zoning operation in a
hydronic zoning system.
Power and Electrical Ratings:
Power Supply: 120 Vac / 60Hz
Auxiliary Pump Contact Rating: 120/250 Vac, 5A,
1/3 HP
Boiler (T-T) Contact Rating: 24 Vac, 0.5A, 12 VA
Boiler Pump Output Rating: 120 Vac, 5A, 1/3 HP
DHW Pump/Valve Output Rating: 120 Vac, 5A, 1/3 HP
B–B Communication Bus Terminals: Low voltage,
Class II, 2-wire polarity-insensitive, digital
communicating link to other Control or Zoning modules.
Electrical Connections (Line Voltage): Wire-clamp
screw terminals; maximum 2 x 14 AWG each on line
voltage terminals
Environmental Ratings:
Control and Zoning Panel Temperature Rating: 32°F to
130°F (0°C to 55°C)
ORDERING INFORMATION
When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the
TRADELINE® Catalog or price sheets for complete ordering number.
If you have additional questions, need further information, or would like to comment on our products or services, please write or
phone:
1. Your local Honeywell Automation and Control Products Sales Office (check white pages of your phone directory).
2. Honeywell Customer Care
1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386
In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Toronto, Ontario M1V 4Z9.
International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France,
Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.
68-0306—02
Temperature Ratings:
Inputs/Outputs:
Corresponding
Zoning Module
AQ15540B
AQ15740B
Interface and Timings:
Thermostat Compatibility: Digital thermostats and/or
Supply/Return Loop Sensor: 10K ohm NTC thermistor at
Dimensions (HxWxD): 8.0 x 13 x 3.3 in. (20.3 x 32.9 x
Weight: 4.9 lb. (2.2 kg)
Approvals: Canadian Standards Association: Certified, File
2
Operating Humidity Range (% RH): 5 to 90% RH, non-
condensing
Return Minimum Control Temperature: 140°F (60°C);
This is the temperature at which the bypass pump
(Aux. Pump contacts) is activated.
Sensor Temperature Rating: -58°F to 230°F (-50°C to
110°C)
DHW Demand Input: External dry contacts connection
only
Heat Demand (Thermostat R-W) Input: External dry
contacts connection only
R–C Input (on Control and Zoning Modules): 24 Vac
Class II
R–C Output (on transformer): 38 VA, 24 Vac Class II
User Interface: DIP Switch settings
Boiler Heat Post Purge: 30 seconds; not adjustable
Pump/Valve exercise: 30 seconds per 2 weeks of space
heating inactivity; not adjustable
AQ1000 Series 2-wire communicating thermostats
77°F (25°C) ± 0.5°F (±0.3°C). Lead length: 10 ft. (3.0 m);
up to 500 ft. (150 m) using 18 AWG or larger wire,
beta=3892.
8.5 cm) approximate
No. LR76030